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Art [367]
3 years ago
11

Work out the answers to:a) 7 + (-4)b) (-6) + (-3)c) 2 -(-6)d) (-8) - (-13)​

Mathematics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:

a) 7 + (-4) = 3

b) (-6) + (-3) = -9

c) 2 -(-6) = 8

d) (-8) - (-13) = 5

Step-by-step explanation:

a) 7 + (-4)

= 7 + (-4)

= 3

b) (-6) + (-3)

= -6 - 3

= -9

c) 2 - (-6)

= 2 + 6

= 8

d) (-8) - (-13)

= -8 + 13

= 5

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Answer:

865

Step-by-step explanation: The set of possibilities are:

Subcommittee  is of 4 people according to:

4  teachers    0 other member       total possibilities    1

3  teachers     1     teachers  C₄,₃  = 4   and  other member  6    6*4   =  24

2 teachers     2      C₄,₂  =  4!/2!  = 12    2 (om)    and  C₆,₂   =  6!/4!  = 30

30*12  = 360

1  teacher        3     (om)               4         and  C₆,₃ = 6!/3!   =  120

120*4  = 480

Total ways of committee    1  + 24  + 360 +  480  = 865

4 0
3 years ago
Please explain I don’t I understand help
djyliett [7]

Answer:

Step-by-step explanation:

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f ( -20 - 6 2/5 ) = (a) (6 2/5 -6 2/5) (6 + b)

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2 years ago
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Answer:

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Read 2 more answers
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